LÖVE

Is it possible to access a devices camera using Love? If not, is there any libraries that allow me to access the camera that will work with love?

I don't think love has any built-in way to access device camera, but you could load a C library via luajit FFI. With some googling there are libraries like OpenCV that'd do the job, but might not hurt to search around a bit more if that's a bit too large of library for you.

These kind of thing entriely depends on platform. In mobile, if user didn't grant you Camera permission then there's nothing you can do.